In dealloc method set any delegate to nil is needed or not needed

Question

I have created tableview in my view by programmatic like below

table = [[UITableView alloc] initWithFrame:CGRectMake(0, 44, 320, 370) style:UITableViewCel         


        

Answer 1

From Setting delegate to nil in dealloc:

It's a defensive programming move. It's clearing out the reference to the delegate object incase something else in your object tries to access the delegate after you've told it that you're done with it. As part of your dealloc you might have a method or do something that triggers a KVO notification that makes a call to the delegate. So setting the delegate's reference to nil prevents that from happening. If it did happen you could end up with some oddball crashes that are fun to reproduce and fix.